Initial commit: NetMesh smart ops platform with 3D topology, inspection reports, RCA and AI ops assistant

domain/sftpConflict.ts

@@ -0,0 +1,30 @@
+export type SftpConflictExistingType = "file" | "directory" | "symlink";
+
+export const getSftpConflictTypeKey = (
+  isDirectory: boolean,
+  existingType?: SftpConflictExistingType,
+): string => `${isDirectory ? "directory" : "file"}:${existingType ?? "unknown"}`;
+
+export const canReplaceSftpConflict = (
+  isDirectory: boolean,
+  existingType?: SftpConflictExistingType,
+): boolean => {
+  // Legacy persisted conflicts may not know the destination type. A file keeps
+  // its historical behavior, but a folder must fail closed because the unknown
+  // target may itself be a folder with destination-only data.
+  if (!existingType) return !isDirectory;
+  // Symlinks are neither files nor directories for conflict typing. Replace must
+  // unlink the link itself (not follow it), so either incoming kind may replace.
+  if (existingType === "symlink") return true;
+  return (existingType === "directory") === isDirectory;
+};
+
+export const shouldUnlinkSftpConflictBeforeReplace = (
+  existingType?: SftpConflictExistingType,
+): boolean => existingType === "symlink";
+
+export const describeSftpIncomingKind = (isDirectory: boolean): string =>
+  isDirectory ? "directory" : "file";
+
+export const describeSftpExistingKind = (existingType?: SftpConflictExistingType): string =>
+  existingType === "directory" ? "directory" : "file";